Uniqueness
Dürer’s Saint Jerome in His Study
Concepts
Guides
Uniqueness is the property of a clue or series of clues which points to exactly one answer. The selection and proper rendering of unique clues is an important step of the writing process.
Making a clue unique by adding additional information is often referred to as "pinning it" to the answer.
Theory
Uniqueness is an important aspect of pyramidality - in order to distinguish players based on their relative level of knowledge, it must be possible to provide the correct answer at various points in the question. This is not possible unless each
It is not required (or even possible, in most cases) for every single word or clause of a tossup or clue to be unique. Nevertheless, it is preferable to have as many subsets of a clue be unique as possible.
Consider the following leadin from a question on Amaterasu
:
This deity won a challenge with another god by creating three goddesses by chewing up a sword and spitting it out, after which her opponent went on a rampage.
-2019 Glasgow Scottie
A psychopath particularly bold individual could buzz after the word "deity" and give an answer like Ares
then attempt to protest their way into points on the argument that the answer they provided was accurate given the clues that had been read thus far. To avoid this edge case, both ACF and NAQT have clues that limit protests on the grounds of uniqueness to after the first clue. This has had its own negative consequences, namely that it is difficult for a player to discern where the first clue ends (and thus when they are allowed to protest).
A hose is a particular form of "bad quizbowl" in which this basic principle has been upended and players who buzz on early clues are negged because the clues were accidentally or intentionally non-unique.